From owner-dev-commits-src-all@freebsd.org Mon Feb 8 20:10:20 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 9FF7653FF07; Mon, 8 Feb 2021 20:10:20 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DZHFS3x5Pz4n6r; Mon, 8 Feb 2021 20:10:20 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7A4D71D5ED; Mon, 8 Feb 2021 20:10:20 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 118KAK8q041418; Mon, 8 Feb 2021 20:10:20 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 118KAKsc041411; Mon, 8 Feb 2021 20:10:20 GMT (envelope-from git) Date: Mon, 8 Feb 2021 20:10:20 GMT Message-Id: <202102082010.118KAKsc041411@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Warner Losh Subject: git: 9600aa31aa63 - main - nvme: use NVME_GONE rather than hard-coded 0xffffffff MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: imp X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 9600aa31aa633bbb9e8a56d91a781d5a7ce2bff6 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Feb 2021 20:10:20 -0000 The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=9600aa31aa633bbb9e8a56d91a781d5a7ce2bff6 commit 9600aa31aa633bbb9e8a56d91a781d5a7ce2bff6 Author: Warner Losh AuthorDate: 2021-02-08 20:08:48 +0000 Commit: Warner Losh CommitDate: 2021-02-08 20:08:48 +0000 nvme: use NVME_GONE rather than hard-coded 0xffffffff Make it clearer that the value 0xfffffff is being used to detect the device is gone. We use it other places in the driver for other meanings. --- sys/dev/nvme/nvme_ctrlr.c | 6 +++--- sys/dev/nvme/nvme_private.h | 2 ++ sys/dev/nvme/nvme_qpair.c | 2 +- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/sys/dev/nvme/nvme_ctrlr.c b/sys/dev/nvme/nvme_ctrlr.c index 2bd7074ee378..c0e6c408ab56 100644 --- a/sys/dev/nvme/nvme_ctrlr.c +++ b/sys/dev/nvme/nvme_ctrlr.c @@ -261,7 +261,7 @@ nvme_ctrlr_wait_for_ready(struct nvme_controller *ctrlr, int desired_val) ms_waited = 0; while (1) { csts = nvme_mmio_read_4(ctrlr, csts); - if (csts == 0xffffffff) /* Hot unplug. */ + if (csts == NVME_GONE) /* Hot unplug. */ return (ENXIO); if (((csts >> NVME_CSTS_REG_RDY_SHIFT) & NVME_CSTS_REG_RDY_MASK) == desired_val) @@ -1471,7 +1471,7 @@ nvme_ctrlr_destruct(struct nvme_controller *ctrlr, device_t dev) * Check whether it is a hot unplug or a clean driver detach. * If device is not there any more, skip any shutdown commands. */ - gone = (nvme_mmio_read_4(ctrlr, csts) == 0xffffffff); + gone = (nvme_mmio_read_4(ctrlr, csts) == NVME_GONE); if (gone) nvme_ctrlr_fail(ctrlr); else @@ -1549,7 +1549,7 @@ nvme_ctrlr_shutdown(struct nvme_controller *ctrlr) ((uint64_t)ctrlr->cdata.rtd3e * hz + 999999) / 1000000; while (1) { csts = nvme_mmio_read_4(ctrlr, csts); - if (csts == 0xffffffff) /* Hot unplug. */ + if (csts == NVME_GONE) /* Hot unplug. */ break; if (NVME_CSTS_GET_SHST(csts) == NVME_SHST_COMPLETE) break; diff --git a/sys/dev/nvme/nvme_private.h b/sys/dev/nvme/nvme_private.h index d44f1989dd71..6c1d293f047d 100644 --- a/sys/dev/nvme/nvme_private.h +++ b/sys/dev/nvme/nvme_private.h @@ -104,6 +104,8 @@ MALLOC_DECLARE(M_NVME); #define CACHE_LINE_SIZE (64) #endif +#define NVME_GONE 0xfffffffful + extern int32_t nvme_retry_count; extern bool nvme_verbose_cmd_dump; diff --git a/sys/dev/nvme/nvme_qpair.c b/sys/dev/nvme/nvme_qpair.c index 45b1568a4c5a..0726ca248442 100644 --- a/sys/dev/nvme/nvme_qpair.c +++ b/sys/dev/nvme/nvme_qpair.c @@ -945,7 +945,7 @@ nvme_timeout(void *arg) nvme_abort_complete, tr); } else { nvme_printf(ctrlr, "Resetting controller due to a timeout%s.\n", - (csts == 0xffffffff) ? " and possible hot unplug" : + (csts == NVME_GONE) ? " and possible hot unplug" : (cfs ? " and fatal error status" : "")); nvme_ctrlr_reset(ctrlr); }